摘要
根据2012年5月(春季)、10月(秋季)对象山港口东北部海域进行的两次底拖网渔业资源调查所获得的鱼类数据资料,分析了该调查海域的鱼类种类组成、生物多样性等。结果表明:象山港口东北部海域春秋两季共鉴定出鱼类47种,隶属10目28科42属,其中春季共有鱼类33种,优势种为日本鳀、六丝钝尾虾虎鱼等2种;秋季共有鱼类28种,优势种仅有龙头鱼等1种。根据不同季节ABC曲线变化,象山港口东北部海域春秋季鱼类的丰度曲线均在生物量曲线之上,说明该海域鱼类生物群落处于不稳定状态。春季鱼类渔获率普遍高于秋季,这可能主要是因为分布在该海域的鱼类以洄游性种类居多之故。
Based on data from two fishery investigations in May（Spring） and November（Autumn） 2012, an-alyzed the species composition and diversity of fishes in Northeast Water of Xiang Shan Port. The results showed that 47 species of fishes belong to 10 orders and 28 family under 42 genera in the survey area. There were 33 species in spring, and according to the standard of IRI, Engraulis japonicas, Amblychaeturichthys hexanema, Harpodon nehereus, etc. were dominant species. While, in autumn, there were 28 species and Harpodon nehereus, Mugil cephalus were dominant species. According to the Abundance and Biomass Curves, the fish community in Northeast Water of Xiangshan Port was in an unstable state, for the Abundance Curves were always on the top of Biomass Curves in the two seasons. The average CPUE of fish in spring were higher than that in autumn, and the reason is mainly that the fish were migratory in the survey area.
出处
《浙江海洋学院学报（自然科学版）》
CAS
2015年第6期505-513,共9页
Journal of Zhejiang Ocean University(Natural Science Edition)
基金
国家自然科学基金项目(31270527)
企事业委托项目(2012.3-2013.3)
关键词
鱼类种类组成
生物多样性
象山港口
species of fishes
diversity of fishes
northeast water of Xiangshan port
